Gas Unit Heaters PRODUCT LITERATURE. The right choice can make all the difference

Transcription

1 Gas Unit Heaters PRODUCT LITERATURE The right choice can make all the difference ROBUR

2 ROBUR VALUES Mission Robur is dedicated to dynamic progression in research, development and promotion of safe, environmentally-friendly, and energy-efficient products, through the commitment and caring of its employees and partners Vision Robur turns THE LOVE FOR BEAUTY AND WELL-MADE THINGS into innovative heating and cooling systems that are especially designed and developed to answer the specific needs of Man 7 pillars Sharing values Training Quality Innovation Service Social responsability Testimony The right choice can make all the difference A responsible purchase behaviour may have a great influence on our way of life. Consider that a product consumes tons of oil during its whole life cycle, generating pollution that the forest cannot rebalance. That's why, when choosing a product, we take a great responsibility. Even the choice for the heating system may have a big impact. To all who choose responsibly, Robur offers high efficiency heating systems with low environmental impact, and moreover concepts, data and facts to spread the culture of energy efficiency and environmental protection. Benito Guerra - Robur S.p.A. Chairman 2 Robur

3 since 1956 ROBUR AWARDS AND CERTIFICATIONS ISO 9001 Certification First Prize Italian Quality Award Robur is the first ISO 9001:2000 (Vision 2000) certified company in Europe in HVAC sector Special Prize Winner of European Quality Award - Robur, with its reversible Gas Absorption Heat Pumps, won the Technological Innovation Award Benito Guerra, chairman of Robur, received a nomination as finalist in the "Quality of life" category of the National Businessman of theyear Award, promoted by Ernst&Young ISO 14001: 2004 Certification - CSA Certification (USA) Honourable mention at AHR Expo Innovation Award sponsored by ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers - USA) Mentioned as best product category for gas-fired heat pumps as part of the Impresa Ambiente Prize - Special mention in Enterprise Prize for Innovation promoted by Confindustria ROBUR Test Laboratories accredited by California Energy Commission - CEC - Gas Absorption Heat Pumps performances are tested by VDE and DVGW-Forschungsstelle Special mention in the catagory Energy Efficiency Development Prize 2009 by the Foundation Sustainable Development and Ecomondo Robur is Coordinator of the HEAT4U Project (7 th Framework Programme for Research and Technological Development promoted by European Commission). 14 among the most important European organizations in the energy, industrial, and research fields are involved. The challenge for this project, which shall continue through to 2014, is to implement the gas absorption heat pump technology, currently used for heating light commercial buildings, also in the area of single-family detached residential homes Gas Absorption Heat Pumps are tested by Engler-Bunte-Insitut (EBI) of the Karlsruher Institut fuer Technologie (KIT) Gas Absorption Heat Pumps are tested by the Cetiat Laboratory in Lyon (EN ISO 17025). Robur 3

4 4 Robur

5 SUMMARY GAS UNIT HEATERS The winning features of the Rour heating system p. 6 G Series Condesing p. 9 K Series p. 11 B 15 Series p. 14 F Series p. 16 F C Series p. 18 M Series p. 19 M C Series p. 20 M xt Series p. 21 Gas Unit Heaters Accessories p. 22 The Value of Experience p. 24 Robur 5

6 Gas unit heaters Line More than 190,000 Robur gas heaters have been installed in Europe. They are ideal for industrial and commercial premises and workshops, gyms and fitness centres, warehouses and storage facilities, laboratories, commercial and trading areas, tennis courts, bowling alleys and greenhouses. The winning features High efficiency without thermal inertia The Robur air to air heat exchanger ensures extremely high efficiency Time required to reach comfort level The Robur system avoids the need to install costly water pipeline which is not only expensive to install, but is also a source of heat loss. Results obtained from the comparison of three types of gas heating system Floor standing warm air heaters Robur gas fired unit heaters Radiant tubes Required comfort level With a modular Robur installation, within 30 minutes even the largest spaces are warmed. Tests, carried out at the Robur research and development center and at installations all over Europe, have demonstrated that given equal energy consumption Robur heaters give higher efficiency and environmental comfort than alternative systems. The figure below shows the results obtained by comparing the Robur system with two other types of heating systems. The first system, with a traditional floor standing warm air heater, requires one and a half hours to achieve the same ambient conditions. The second system, based on radiant tubes, even after four hours is not able to reach the same level of comfort. 6 Robur

7 Gas unit heaters Line The Robur Ground Effect: temperature in the higher levels Total safety in operation and No central heating plant, energy savings guaranteed and vice versa higher reliability and lower installation costs The Heat Exchanger is designed temperature in the lower levels. The operating diagram on the Robur heaters are installed with double vertical and horizon- This result in the hotter lower right highlights the intrinsic directly in the room to be heated tal finning, increasing internal air being kept down by the safety of Robur heaters. When and do not require a central and external heat exchanger cooler higher air. Thus the installed in the balanced flue heating plant or any other surface. Made out of a special different temperatures within mode optimum safety is additional building costs. alluminium die-cast alloy (its the air-throw ensure a complete achieved by only taking fresh Also given the suspended high thermal conductivity is 10 air mixing, thus reducing the combustion air into the nature of the installation, times higher than steel) it allows temperature gradient between appliance, thus ensuring no precious floor area is kept free. a more homogeneous tempera- floor and ceiling. reduction in oxygen levels in the ture on exchanger surfaces with This exclusive Robur Ground area being heated. Ease of installation optimal distribution. The large Effect allows users to reduce Also all products of combustion Each unit is supplied with heat exchanger surface and the consumption and geat are exhausted outdoors. installation template which absence of high temperature stratification, with energy saving A high level of reliability is greatly simplifies the units areas avoid the carbonization of up to 22%. achieved by two exclusive installation. The three simple atmospheric dust, ensuring a technical features: steps: a hole in the wall for the perfect environmental comfort. a completely weld free inlet air supply and outlet of Robur heaters allow users to combustion chamber resulting exhausted gas, connection to reduce consumption and heat in extremely low levels of the gas supply and to the stratification problems. mechanical stress; electricity supply. Its secret is the heat exchanger the use of only the highest - the real heart of Robur unit quality components. heaters - which splits the air flow into different layers having different temperatures: lower Robur 7

8 Gas unit heaters Line Modularity and autonomy: independently from the others Uniform temperatures, comfort comfort produced by the heat only when and where that are installed, autonomously and saving: the facts speak for exclusive heat exchanger needed regulating the temperature of themselves. guarantees a homogeneous As stand alone gas fired heaters each single zone for the length Tests conducted at Robur's temperature in a short time and they are suitable for modular of time desired and therefore Research and Development ensures that the air is already installation. Each Robur heater adjusting fuel consumption to Centre upon various gas-based perfectly mixed at just 4 metres is a separate, independent actual requirements. Robur heating systems (see graph from the appliance, maintaining heating unit with the dual heaters are particularly below) have shown that for these properties unchanged function of generating and suited to locations where the systems with floor standing even at a great distance diffusing heat. The heaters modifications or expansion of warm air heaters and with (40 metres and upwards) from adapt to the variable heat the existing plant are foreseen. radiant tubes the difference in the heater. requirements of different Finally, the Robur system air temperature, at 1 metre and buildings, thus allowing the guarantees constant heat even 6 metres from the ground, is number of appliances to install in the event of failure of one approximately 9 C, whereas to be chosen, according to appliance, thanks to the with Robur heaters the different requirements. autonomy and independence of temperature difference is only Each appliance can operate those remaining in operation. 1.5 C. In addition, the ambient Temperature C C/m 0.3 C/m Results obtained from the comparison of three types of heating system Floor standing warm air heaters Robur gas fired unit heaters Radiant tubes Building heigh m 8 Robur

9 Condensing technology enters in the world of gas unit heaters offering higher efficiency and energy savings for better comfort thanks to the automatic modulation of the flame and ventilation. G Series High thermal efficiency and respect of the new norms about the heating installation system. The choice of condensation for Gas Unit Heaters allows to obtain thermal efficiencies over 105% and consequently comparable with the best condensing boilers on the market. The remarkable advantage of Gas Unit Heaters is that the water distribution is not required, presenting a better global efficiency of the system. Perfect modulation of the heating output. The energy needed is grant by the heaters in a uniform and adequate mode for any single part of the premises. Each heater is able to give its own heating output proportioned to heating demand. In this way the modulation will support an average efficiency of functioning much more higher than the nominal value of the system and a constant ambient temperature in any functioning condition. CO and NOx emissions practically nil. The control of the total premix combustion permits also to avoid problems on the exhaust flue system. Ideal applications workshops and factories; all premises where high comfort and high efficiency are required; commercial buildings and show rooms; sports halls and fitness centres. Efficiency 105% up to Savings 25% up to min.... and the largest 30 spaces are warmed! More: Robur 9

10 G Series Heat input Heat output Efficiency G30 G45 G60 G100 nominal kw min. kw nominal kw reduced kw nominal % min. % natural gas m 3 /h Gas consumption (1) LPG kg/h Airflow rate (2) max. m 3 /h 2,700 4,000 5,350 8,250 min. m 3 /h 2,300 2,340 3,310 5,200 Temperature rise max. K min. (3) K Gas connection M 3/4 Air inlet pipe diameter mm 80 Exhaust flue pipe diameter mm 80 Electrical supply 230 V 1N - 50 Hz Installed wattage W Air throw at maximum speed in free field (4) m Recommended height of installation m /3 3/3.5 3/4 Operating temperature range (5) C 0/35 Sound pressure level at the in open field db(a) max speed at 6 meters distance in typical installation db(a) Sound pressure level at the in open field db(a) min speed at 6 meters distance in typical installation db(a) width mm ,296 Size depth mm height mm Weight kg (1) At 15 C mbar. (2) At 20 C mbar. (3) Temperature rise of the air which permits to maintain the outlet air flow at a higher temperature than the one of the human body for a better comfort. (4) Throw for guidance only. Throw depends on height of building, mounting height to heater, room temperature and louvre setting. (5) Indoor temperature of the installation location 0 C/35 C; The unit s internal components have been tested from 0 C to 60 C. 10 Robur

11 Continuous modulation for maximal comfort. Gas unit heaters with variable air flow rate and modulated heat input. K Series Modulation of heat output and ventilation according to ambient requirements. High efficiency up to 96% for greater energy savings. Reduced size and weight, for faster and safer installation. K Series heaters have a lower size/heat output ratio than other warm air heaters currently available on the market. Digital chronothermostat supplied as standard, offers a series of important regulation and control functions, resulting in a more precise and economical use of the heating system. Ideal applications Modulation of heat output and air ventilation means that the K heaters can be used efficiently in all industrial and commercial premises as: workshops and factories, including large ones; commercial buildings and showrooms; laboratories and sports halls. Efficiency up to 96% Modulation More: Robur 11

12 K Series Comfort without competitors. Supply of heating output and ventilation is in proportion to the requirements of indoor space. The graphic below shows this particular capacity to keep comfort comparing the indoor temperature of a room heated with an ON-OFF heater and with a K Series heater when the heat request is reduced. Thanks to the heat and the fan modulation and to an electronic system with a digital chronothermostat, the temperature is kept almost constant. Ambient temperature C Comfort zone Zone of greatest heat dispersion and ambient discomfort Zone of low ambient comfort Temperature patterns with modulating K series heaters Temperature patterns with ON-OFF heater Energy savings and seasonal at their best. Their efficiency, efficiency. already a remarkable 92% at K Series heaters have been maximum heat output, rises by designed to provide high thermal efficiency under all operational range. In fact, for most of the winter season, heat requirements are less than the maximum specified in the project and it is in these conditions that Robur gas fired unit heaters perform 4 percentage points to 96% (see graph below). Furthermore, the modulation allows the amounts of on and off to be reduced and therefore increasing the efficiency of the overall system. % heat output required Load and efficiency patterns of heaters October December February April η heater 12 Robur

13 K Series Heat input Nominal heat output Efficiency at heat input K 32 K 45 K 60 K 100 max. kw min. kw max. kw min. kw max. % min. % natural gas m 3 /h Gas consumption (1) LPG G30 kg/h LPG G31 kg/h Air flow rate (2) max. m 3 /h 2,700 4,000 5,350 8,250 min. m 3 /h 2,300 2,600 3,670 5,775 Temperature rise at maximum speed K at minimum speed K Gas connection F 3/4 Air inlet pipe diameter mm 80 Exhaust air pipe diameter mm 80 Electrical supply 230 V 1N - 50 Hz Installed wattage W Air throw (3) m Recommended height of installation m 2.5/3 2.5/3 3/3.5 3/4 Operating temperature range (4) C 0/35 at maximum speed in open field db(a) Sound pressure level at 6 metres at maximum speed in typical installation db(a) at minimum speed in typical installation db(a) width mm ,296 Size depth mm height mm Weight kg (1) At 15 C mbar. (2) At 20 C mbar. (3) Throw for guidance only. Throw depends on height of building, mounting height to heater, room temperature and louvre setting. (4) Indoor temperature of the installation location. The unit s internal components have been tested from 0 C to 60 C.. Robur 13

14 Gas unit heaters for the heating of small and medium size premises. It can be installed in horizontal or vertical position. B15 Series Efficiency 92%. Easy installation. The heater, equipped with its own bracket, can be installed in horizontal, inclined or vertical position in order to divert the heat in the needed direction; Reduced size and weight. Low noise emissions. Accessories included Remote control with lock out warning; reset button and summer/winter switch. Ideal applications Direct exchange heating of: Small and medium size premises; Shops and show rooms; Laboratories and factories; Fitness centres and sport halls. 92% Small size Efficiency up to Easy installation More: 14 Robur

15 B15 Series B 15 Nominal heat input kw 15 Nominal heat output kw 13.8 Efficiency % 92 Nominal gas consumption (natural gas) (1) m 3 /h 1.58 Nominal air flow (2) m 3 /h 2,170 Temperature rise K 16.1 Gas connection M 3/4 Air inlet pipe diameter mm 80 Exhaust flue pipe diameter mm 80 Electrical supply 230 V 1N - 50 Hz Installed wattage W 160 Operating temperature range C 0-35 Air throw (3) m 12 Sound pressure level at 6 m in open field db(a) 40 in typical installation db(a) 52 width mm 681 Size depth mm 516 height mm 480 Weight kg 28 The installation Thanks to the designed support, the heater can be positioned in horizontal, inclined or vertical position. The bracket permits also to install the heater in a non parallel position respect to the wall. (1) At 15 C mbar. (3) Throw for guidance only. Throw depends on height of building, mounting height (2) At 20 C mbar.. to heater, room temperature and louvre setting. Robur 15

16 High performance and low NOx emissions gas unit heaters. F Series Efficiency of 91% under every operation condition. Easy installation: F Series is available also with vertical downflow that direct the warm air exactly where it is needed. External terminal with limited projection (4.3 cm from the wall) as Robur personalized accessory. Intake and exhaust ducts both only 80 mm in diameter, to make installation easier. Ideal applications industrial premises and workshops; laboratories; warehouses and storage facilities; supermarkets and showrooms. Efficiency up to Easy 91% installation More: 16 Robur

17 F Series F1 21 F1 31 F1 41 F1 51 Nominal heat input kw Nominal heat output kw Efficiency % natural gas m 3 /h Nominal gas consumption (1) LPG G30 kg/h LPG G31 kg/h Nominal air flow (2) m 3 /h 2,120 2,860 4,180 5,100 Temperature rise K Gas connection F 3/4 Air inlet pipe diameter mm 80 Exhaust air pipe diameter mm 80 Electrical voltage 230V 1N - 50Hz Installed wattage W Air throw (3) m Recommended installation height m 2.5/3 2.5/3 2.5/3 2.5/3 Operating temperature range (4) C 0/35 Sound pressure level in open field db(a) at 6 metres in typical installation db(a) width mm Size depth mm height mm Weight kg (1) At 15 C mbar. (2) At 20 C mbar. (3) Throw for guidance only. Throw depends on height of building, mounting height (4) Indoor temperature of the installation location. The unit s internal components have been tested from 0 C to 60 C. to heater, room temperature and louvre setting. Robur 17

18 Gas unit heaters with centrifugal fan. Duct system for heating several rooms with a single appliance. F C Series Efficiency up to 91%. Air intake and exhaust outlet Efficiency Burner with total air pre-mixing pipes both 80 mm in diameter, up to and low NOx emissions. ensuring quick and easy 91% Flange duct outlet suitable to installation. be connected to an antivibration joint (optional). Duct Ideal applications Duct system system will be sized according to the available pressure head of the model of heater. Ideal for duct system: Changing rooms. Rooms used as offices, for meetings and for services. Restaurants, bars and shops. F1 21C F1 41C F1 51C Nominal heat input kw Nominal heat output kw Efficiency % natural gas m 3 /h Nominal gas consumption (1) LPG G30/G31 kg/h 1.80/ / /3.73 Air flow (2) with free outlet m 3 /h 2,500 3,500 4,000 at maximum admissible pressure drop m 3 /h 2,000 2,600 2,800 Maximum available pressure head Pa Gas connection F 3/4 Air inlet/exhaust air pipe diameter mm 80 Electrical supply 230 V 1N - 50 Hz Installed wattage W ,100 width mm Size depth mm ,020 height mm Weight kg (1) At 15 C mbar. (2) At 20 C mbar. 1 Anti-vibration joint Centrifugal fan 3 Air intake and exhaust pipes Ø 80 mm 4 4 External wall terminal 5 Wall support bracket More: Robur

19 Gas unit heaters with atmospheric burner. For heating commercial and industrial premises. M Series The simplicity and reliability of M series heaters provide a superior price/performance ratio in comparison with other heating systems. Reliable operation unique components. Ideal applications industrial premises and workshops; laboratories; warehouses and storage facilities; supermarkets and showrooms. greenhouses and livestock facilities. Superior price/performance ratio 30 minutes... and the largest spaces are warmed! M 20 M 25 M 30 M 35 M 40 M 50 M 60 Nominal heat input kw Nominal heat output kw Gas consumption Natural gas m 3 /h LPG G30 / LPG G31 kg/h Air flow rate (2) m 3 /h 2,630 2,800 4,100 3,900 4,530 5,200 7,140 Temperature rise K Gas connection M 1/2 1/2 1/2 1/2 1/2 3/4 3/4 Air inlet pipe diameter (3) mm 130 Exhaust air pipe diameter (3) mm 110 Electrical supply 230 V 1N - 50 Hz Installed wattage W Air throw (4) m Recommended installation height m /3 2.5/3 2.5/3 2.5/3 2.5/3 3/3.5 Operating temperature range (5) C 0/35 Sound pressure in open field db(a) at 6 metres in typical installation db(a) width mm ,070 1,270 Size height mm depth mm Weight kg (1) A 15 C mbar. (2) A 20 C mbar. (3) Nominal diameter of rigid pipe to be inserted into specific cylindrical housing. (4) Values measured in free field; in actual installation heat flow may reach significantly greater distances than the value declared above (depending on height, installation environment and thermal insulation of the area covered). More: (5) Indoor temperature of the installation location. The unit s internal components have been tested from 0 C to 60 C. Robur 19

20 Gas unit heaters for ducting and changing the air with an air-to-air system. M C Series Centrifugal fan design for ducting applications. Designed to be equipped with a back intake chamber applied by a regulation damper and air filters. Ideal applications heating of several rooms with one duct system only. heating of rooms where low speed air distribution is required. medium-large areas where complete or partial air renew is required; Duct system air renew M 20C M 30C M 60C Nominal heat input kw Nominal heat output kw natural gas m 3 /h Gas consumption (1) LPG G30 / LPG G31 kg/h Air flow rate (2) with free outlet m 3 /h 2,900 4,300 7,600 at maximum admissible pressure drop m 3 /h 1,600 3,100 5,800 Temperature rise with free outlet K at maximum admissible pressure drop K Available pressare head Pa 110 Gas connection M 1/2 1/2 3/4 Air inlet pipe diameter (3) mm 130 Exhaust air pipe diameter (3) mm 110 Electrical supply 230 V 1N - 50 Hz Installed wattage W Operating temperature range (4) C 0/35 width mm ,270 Size height mm depth mm Weight kg (1) At 15 C mbar. (2) At 20 C mbar. (3) Nominal diameter of rigid pipe to be inserted into specific cylindrical housing. (4) Indoor temperature of the installation location. The unit s internal components have been tested from 0 C to 60 C. (5) External diameter. More: 20 Robur

21 Gas unit heaters for outdoor installation with atmospheric burner. For extra-european countries only. M xt Series Heaters for outdoor The externally-installed installation, available in 3 M xt heaters are suitable for models of heat output from heating rooms: 42.5 to 63.8 kw. that need a constant External installation of the ventilation (specific processes, appliance allows air to be public rooms etc.); wholly or partially drawn where indoor installation is not from the outside. permitted by norm (places of Automatic modulation public entertainment or rooms of the flow of warm air into where flames may form), such the heated environment, as repair shops, painting shops depending on air intake and joiner's shops. Outdoor installation Automatic modulation temperature, lowering it so that temperature is reduced. M 40xt M 50xt M 60xt Nominal heat input kw Nominal heat output kw natural gas m 3 /h Nominal gas consumption (1) LPG G30 / LPG G31 kg/h nominal m 3 /h 4,200 5,200 7,800 Air flow (2) at maximum available pressure head m 3 /h 2,710 3,350 4,800 reduced with unobstructed intake m 3 /h 2,940 3,640 5,460 Maximum available pressure head Pa Temperature rise nominal K at maximum available pressure head K Gas connection M 1/2 3/4 3/4 Air inlet pipe diameter (3) mm 130 Exhaust air pipe diameter (3) mm 110 Electrical supply 230 V 1N - 50 Hz Installed wattage W Operating temperature range (4) C -15/35 Sound pressure level at 6 metres in free field at maximum airflow rate db(a) Weight kg (1) At 15 C mbar. (4) The unit s internal components have been tested from -15 C to 60 C. (2) At 20 C mbar. (3) Nominal diameter of rigid pipe to be inserted into specific cylindrical housing. More: Robur 21

22 Gas Unit Heaters accessories SUPPORT BRACKETS Robur gas unit heaters can be supplied with support brackets, for easy and safe installation. Tubular support bracket Extremely easy to install, it is suitable for all models and is supplied with ties-rods, bolts and washers to anchor to the wall. Revolving wall support bracket This allows for an easy and correct installation of the gas unit heater. Complete with external counterplate. External support bracket kit Manufactured specifically to be weather-resistant, it allows extremely easy installation of the appliance on the outside wall (F C and M C Series). Revolving wall support bracket (B 15 Series) It allows for an easy installation. The heater can be positioned in horizontal, inclined or vertical position. The bracket permits also to install the heater in a non parallel position respect to the wall. DUCT ACCESSORIES FOR EXHAUST AIR OUTLET AND AIR INLET PIPES Ducts for separate exhaust outlet Additional flue and combustion air pipes may be added and are all available on request. Aluminium alloy and stainless steel double external terminals The new external terminal for 80mmdiameter (separate) inlet and outlet ducts is a Robur personalized accessory. In addition to its modern design, the extremely limited projection (4.3 cmfromthe wall) is another of its exclusive characteristics. The kit also includes the external terminal and fitting and fixing elements. Roof and wall concentric flue terminal kits A concentric terminalmust be used for balanced flue applications. These are available for either roof or wall outlet. VERTICAL LOUVRES Vertical louvres (B 15 Series not included) The louvres allow the airflow to be diffused in the desired direction, extending the air throw zone of the appliance, and also obstacles (such as columns, machine tools, etc.), for which direct heating is not appropriate, to be avoided. 22 Robur

23 Accessories REGULATION AND CONTROL SYSTEMS Room thermostat Electromechanical thermostat with ON-OFF switch. Available also in IP 55 waterproof version. Remote control Remote control with the following function: lock-out warning lamp; reset button; summer/winter switch. Digital chronothermostat Supplied as standard, with a digital display, it can manage up to 3 temperature levels. Battery powered. AIR DUCT ACCESSORIES Mixing chamber kit (M C and F C Series) Regulation damper Air filter and filter holder kit Air intake filter (M xt Series) In synthetic netting, washable on the mounting frame. Robur 23

24 References THE VALUE OF EXPERIENCE Robur Gas Unit Heaters More than 190,000 Gas Unit Heaters installed all over Europe. 24 Robur

25 Always close to our Customers Robur Pre-Sales Service T export@robur.it Robur Technical Support T export@robur.it Join the Robur Community Contact us Subscribe to our newsletter Have a look at our latest customer references Have a look at our YouTube Channel Due to continuous product innovation and development, Robur reserves the right to change the product specifications without prior notice. Robur 25

26 ROBUR wants to be a place of work: Driven by the Progress Moved by the Passion Trusted by the Humanity Led by the Justice Guaranteed by the Quality Inspired by the Beauty Code: X-DPL189 - REV.05 11/2014 Robur S.p.A. advanced heating and cooling technologies Via Parigi 4/ Verdellino/Zingonia (BG) Italy T F export@robur.it